Why does X11 generate an extra SHIFT when I press Shift+KP_1 ?

[Sreyan Chakravarty]

I did post the unfiltered output but it got scrubbed.

This is my unfiltered output:

IT SEEMS THE MOMENT I PRESS KP_1 WITH SHIFT A RELEASE EVENT IS GENERATED
FOR MY SHIFT KEY EVEN BEFORE THE KEY PRESS FOR KP_1 IS REGISTERED AND WHEN
I RELEASE KP_1 A PRESS EVENT IS GENERATED.

IT IS ALMOST AS IF MY XKB CONFIGURATION FORBIDS SHIFT+KP_1 NO MATTER WHAT I
DO.

KeyPress event, serial 30, synthetic NO, window 0x4e00001,
    root 0x3ac, subw 0x0, time 753837, (164,561), root:(814,600),
    state 0x10, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 30, synthetic NO, window 0x4e00001,
    root 0x3ac, subw 0x0, time 754303, (164,561), root:(814,600),
    state 0x11, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyPress event, serial 30, synthetic NO, window 0x4e00001,
    root 0x3ac, subw 0x0, time 754305, (164,561), root:(814,600),
    state 0x10, keycode 87 (keysym 0xffb1, KP_1), same_screen YES,
    XLookupString gives 1 bytes: (31) "1"
    XFilterEvent returns: False

KeyRelease event, serial 30, synthetic NO, window 0x4e00001,
    root 0x3ac, subw 0x0, time 754351, (164,561), root:(814,600),
    state 0x10, keycode 87 (keysym 0xffb1, KP_1), same_screen YES,
    XLookupString gives 1 bytes: (31) "1"
    XFilterEvent returns: False

KeyPress event, serial 30, synthetic NO, window 0x4e00001,
    root 0x3ac, subw 0x0, time 754352, (164,561), root:(814,600),
    state 0x10, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

This is the weirdest thing I have seen. What is causing this ?

How can I view my current keyboard layout and the rules set in that layout
for modifiers ?

On Mon, Feb 17, 2020 at 3:13 PM Ilya Anfimov <ilan at tzirechnoy.com> wrote:

> On Sun, Feb 16, 2020 at 04:41:55PM +0530, Sreyan Chakravarty wrote:
> >    When I press
> >    Shift+KP_1 why am I getting an extra Shift in my xev output ?
> >
> >  50  Shift_L
> >  87  KP_1
> >  50  Shift_L
> >
> >  I am running xev in the following format:
> >
> >  xev | awk -F'[ )]+' '/^KeyPress/ { a[NR+2] } NR in a { printf "%-3s
> %s\n", $5, $8 }'
> >
> >  This is messing with my i3 configs. Where is the extra Shift coming
> from ? I have disabled
> >  autorepeat and I still get the same output. (xset r off)
> >
> >  Keyboard Layout: English US Default
> >  OS: Manjaro i3wm
> >  Why is this happening?
>
>  Can you post unfiltered xev output when you press and release theese keys?
>
>  Well, this could be some misinterpretation of xev, as well as
> some xkb internal processings. xev output should rule out the first
> variant.
> >
> >    --
> >    Regards,
> >    Sreyan Chakravarty
>
> > _______________________________________________
> > xorg at lists.x.org: X.Org support
> > Archives: http://lists.freedesktop.org/archives/xorg
> > Info: https://lists.x.org/mailman/listinfo/xorg
> > Your subscription address: %(user_address)s
>
>

-- 
Regards,
Sreyan Chakravarty
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